Systemd Services

Oracle Linux 8 — ruby:2.7 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — ruby:2.7 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-3821)

  • February 14, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 14 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-3821 Related CVEs: CVE-2023-28755 CVE-2023-28756 CVE-2021-33621 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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How to Use Amanda for Enterprise Backup on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Use Amanda for Enterprise Backup on Oracle Linux 8

Introduction Setting up use amanda for enterprise backup on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Use Amanda for Enterprise Backup on Oracle Linux 8, with all the commands you need, the SELinux and firewalld […]

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How to Install and Configure Apache HTTP Server on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Install and Configure Apache HTTP Server on IBM AIX 7.1

  • February 14, 2021
  • IBM AIX
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Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to install and configure apache http server on ibm aix […]

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IBM AIX 7.1 — CVE-2020-4259 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2020-4259 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 14 February 2021 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2020-4259, IBM Support Bulletin CVE: CVE-2020-4259 NVD summary: IBM Sterling File Gateway 2.2.0.0 through 6.0.3.1 could allow an authenticated user could manipulate cookie information and remove or add modules from the cookie […]

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Amazon Linux 2 — libjpeg-turbo — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — libjpeg-turbo — multiple vulnerabilities (9 CVEs) — patch and remediation guide

  • February 14, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2254 Related CVEs: CVE-2020-17541 CVE-2021-29390 CVE-2021-46822 CVE-2016-3616 CVE-2018-11212 CVE-2018-11213 CVE-2018-11214 CVE-2018-11813  +1 more Upstream summary: Libjpeg-turbo all version have a stack-based buffer overflow in the "transform" component. A remote attacker […]

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IBM AIX 7.2 — CVE-2021-29691 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2021-29691 — vulnerability — patch and remediation guide

🟠 High   ⏱ 30–90 min  Last verified: 14 February 2021 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2021-29691, IBM Support Bulletin CVE: CVE-2021-29691 NVD summary: IBM Security Identity Manager 7.0.2 contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound […]

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Oracle Linux 8 — Updating libss Package Might Fail if libss-devel Package Is Installed — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Updating libss Package Might Fail if libss-devel Package Is Installed

  • February 13, 2021
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 13 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 32005190 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan […]

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Alpine Linux edge — alpine — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — alpine — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • February 13, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 2.25-r0 📖 ~4 min read  •  Source: Alpine secdb entry — alpine 2.25-r0 Related CVEs: CVE-2021-38370 CVE-2020-14929 Upstream summary: Alpine community repository for vedge ships alpine 2.25-r0 which addresses CVE-2021-38370. Table of contents Symptom & Impact […]

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Common Problems 115573

RHEL 7 – MariaDB Fails to Start Due to SELinux Boolean Misconfiguration

  • February 13, 2021
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 13 February 2021 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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How to Set Up a Network Bridge on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up a Network Bridge on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying set up a network bridge on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up a Network Bridge on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the […]

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